Machine for operating upon soles.



C. S'. NORDEN.

MACHINE FOR OPERATING UPON SOLES.

APPLICAHON FILED APR. 10. 1912.

Patented Feb. 29, 1916.

3 SHEETSSHEET I.

W WWW a 3 max 'C. S. NORDENI MACHINE FOR OPERATING UPON SOLES.

APPLICATION FILED APR-10.1912.

Patented Feb. 29, 1916.

3 SHEETS-SHEET 2.

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THE COLUMBIA PLANOGRAII] co, WASHINGTON. n. c.

' c. s. NORDEN.

MACHINE FOR OPERATING UPON SOLES.

APPLICATION FILED APR. 10. 1912.

3 SHEETS-SHEET 3.

Patented Feb. 29,1916.

1:11P IL TJNTTE @AS PATNT Q CAR-L S. NORDEN, OF WAKEFIELD, MASSACHUSETTS, ASSIGNOR TO UNITED SHOE MAG INERY COMPANY, OF HATER-SON, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MACHINE FOR OPERATING UPON SOLES.

Application filed. April 10, 1912.

To all whom it may concern Be it known that I, CARL S. Norman, a subject of the King of Sweden, residing at Wakefield. in the county of MiddleseX and State of Massachusetts, have invented certain new and useful Improvements in Machines for Operating Upon Soles; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to machines for operating upon the soles of boots and shoes, and more particularly to machines of this type which are employed for skiving out the marginal portions of the shank of a sole.

One object of the invention is to produce a machine of this class in which the skiving is removed from the shank portion of the sole in such a manner that the lines terminating the cut at the ball and breast of the sole are straight.

A further object of the invention is to provide a machine h aying an improved construction and which operates efliciently to skive out the shank of a flat sole, enabling the sole to be accurately assembled with the remainder of the shoe.

To the accomplishment of these objects, a. feature of the present invention contemplates the provision in a machine of the class described of a sole support, a skiving knife, and means for actuating the knife to enter and leave the sole in a plane perpendicular to the plane of the support. Preferably the straight lines terminating the cut at the ball and breast lines of the sole are formed at right angles to the median line of the sole. since with this formation, the accurate fitting of the skived outsole to a welted shoe is insured.

The invention contemplates the use of any suitable form of skiving knife, but on account of the simplicity of construction and the speed at whieh'such a knife can be operated, a knife is preferably used provided with cutting teeth arranged to rotate to bring successive teeth into engagement with the sole. In order to impart the desired bevel to the shank, the rotary cutter is pref- Specification of Letters Patent.

Patented Feb. 29, 1916.

Serial No. 689,781.

erably frusto-conical in shape with its top or smaller diameter directed toward the median line of the sole.

Still further features of the invention consist in certain novel features of construction. combinations and arrangements of parts fully described in the accompanying specification, the advantages of which will be obvious to those skilled in the art from the following description.

In the drawings illustrating the preferred form of the invention; Figure l is a front elevation of a shanking-out machine embodying the invention in the best form at present devised; Fig. 2 is a longitudinal sectional elevation; and Fig. 3 is a plan.

The illustrated embodiment of the invention is provided with a horizontal sole support upon which the sole is clamped in position for the operation of the cutters which are arranged to operate along the opposite margins of the shank of the sole from the breast line to the ball line. The sole is positioned on the support so that the initial cuts of the knife are made at the breast line and the support is then moved to transfer the lines of cut of the cutters longitudinally of the sole until the ball line is reached when the cutters are automatically elevated from the sole. As one cutter reaches the ball line before the other, the cutters leave the sole dissimultaneouslv. During the longitudinal transfer of the lines of cut the cutters are shifted to maintain a fixed relation with the sole edge in order to keep each cut in the shank of uniform width.

Referring now to the drawings the sole to be operated upon is supported by a flat horizontal table 1 slidablv mounted on ledges 2 and 3 formed in the top plates 4 and 5 of the machine frame. The table is normally held pressed against a stop 6 carried by the machine frame (see Fig. 1), to hold the table in a position convenient for the removal and insertion of the sole, by coiled springs 7 and 8 which are connected respectively at their ends to vertical pins 9 carried by the table and horizontal pins 10 carried by the machine frame.

In the illustrated embodiment of the invention the shanking-out operation 1s per{ formed bya pair ofrotary cutters ll ar 7 ranged to operate upon the opposite margins of the sole. As shown, the cutters are frusto-conical in shape and are arranged with their tops, or smaller diameters, directed toward the median line of the sole so that a bevel or skiving cut may be formed in the shank portion of the sole. The cutters are journaled to rotate about axes arranged parallel to the surface of the sole and are provided with a series of cutting teeth extending longitudinally of peripheral surface of the cutters. Each cutter is splined to a shaft 12 journaled in an elongated hub 13 formed in an arm 14 projecting from a sleeve 15 loosely mounted on a driving shaft 16 journaled in hearings in the machine frame. The driving shaft is driven from some suitable source of power through a belt pulley 17. Each cutter is continuously rotated during the 0p- 1 eration of the machine to bring the acting face of each cutting tooth into engagement with the work through a belt 18 which passes over a pulley 19 on the shaft 16 and a pulley 20 on the shaft 12.

In order to actuate the cutters to enter the work in a. plane perpendicular to the plane of the sole each arm 14 is slotted, as shown at 21, Fig. 2, to receive a rod 22 which is pivoted, as at 23, to the machine frame. The upper end of each arm 14 is engaged by a washer 24 loosely mounted on the rod 22 and interposed between this washer 24 and a nut 25 threaded for adjustment on the rod 22 is a.

spring 26 coiled about the rod. The move ment of each cutter under the influence of its spring 26 is limited by adjustable screw bolts 27 carried by each arm 14 and arranged to contact respectively with the top plates 4 and 5 of the machine frame.

Associated with each cutter is a presser foot 28 which. as shown in Fig. 2, is formed as a rectangular bar, pivoted on a horizon tal rod29 projecting from the arm 14, having its lower edge rounded to engage the work. The foot is held pressed against the work by a spring 30, one end of which is secured to the arm 14, and the other end of which is connected to a lug 31 projecting from the presser foot. To prevent the spring 30 from rocking the foot into a horizontal position when it is relieved from the influence of the work the arm 14 carries a stop 32 arranged to'hold the presser foot substantially perpendicular.

In order to cause the cutters to initially cut into the sole at substantially the breast line the rear end of the table 1 is provided with a gage 33 for the heel of the sole. To the end that the gage 33 may be adjusted longitudinallv of the sole so that it may gage the initial cut of the cutters for various lengths of soles the table is longitudinally bored o recei e abl k 5'fermecl integral with the gage 33; The block 35 is interiorly threaded to receive the threaded end of a longitudinal rod 36carried by the table 1 and projected from the front of the table. The projecting end of the rod carries a knurled nut 37 providing a simple device for the adjustment of the gage 33 longitudinally of the sole to position'various lengths of the sole for the initial cut of the cutters at the breast line. The rod 36 is held from longitudinal movement in the table 1 by a bracket 38 secured to the table and arranged to hold the nut 37 against the end oftlie table.

. The sole positioned by the gage 33 is engaged by a clamp 39 arranged to clamp the heel end of the sole to the table 1. The clamp '39 projects from the end of a pin 40 mounted to slide in the heel gage 33. The clamp 39 is actuated to clamp the sole to the table 1 by a spring 41 coiled around the pin 40 and interposed between the block .35 and a platform 42 carried by the pin.

In order to transfer the lines of cut of the cutters longitudinally of the sole the table 1 carries a rack 43 engaged bya segment 44 secured to a shaft 45 journaled in hearings in the machine frame. The shaft 45 carries a gear 46 which rotated continuously from the main driving shaft 16 through a gear 47 arranged to mesh with the gear 46 and a pinion 48 secured to the driving shaft.

In order to maintain the width of the cuts uniform as the lines of out are transferred longitudinally of the sole the relative position of the cutters and sole is controlled by a feeler mechanism controlled by a form of the sole. The feeler mechanism comprises a pair of feelers 49 and 50 arranged to engage the opposite edges of the sole. Each feeler is mounted on a rol 51 slidably mounted in a chamber 52 formed in the arm 14 and is normally pressed in a direction to maintain its rounded end against the sole edge by a spring 53 coiled around the rod and interposed between the bottom of the chamber 52 and the feeler. lVith this construction the feelers 49 and 50 are normally pressed toward each other and are reversely reciprocated as the traveling sole pushes them apart or permits their inward movement under the influence of their springs. To permit the cutters to be controlled bv the feelers each feeler carries a vertical roll 54 I which engages an annular grooved collar 55 carried bv each cutter, the construction being such that the cutters are actuated to approach and separate as the contour of the sole changes.

The cutters are actuated to leave the sole at the ball line by a pair of cams 56 arranged upon opposite sides of the table 1. These cams are provided with beveled ends 57 hich ride nder shoe .3 carried by'the arms 14, and thus elevate the cutters from the work against the tension of their spring 26. As well known to those skilled in the art the shank of a sole is longer along its inside edge than along its outside edge. To cause the cutters to leave the sole dissimultaneously or so that the outside cutter may leave the sole when it reaches the outside ball line and the inside cutter may leave the sole when it reaches the inside ball line the cams 56 are adjustably mounted upon the table 1 by the slot and screw connections 59. l/Vith this construction the cams may be adjusted longitudinally of the support for soles of various lengths and positioned to cause the cutters to leave the sole when each cutter reaches the line of juncture between the shank and ball of the sole.

After the shanking out cutters are elevated by the cams 56 the segment at is rotated out of mesh with the rack 43 and the table 1 is consequently restored to the influence of the springs 7 and 8 and returned by them to its original position against the stop 6. In order to permit the ready removal of the shanked-out sole the machine of the draw ings is provided with mechanism for unclamping the heel clamp, elevating the cut ters, and separating the feelers and the cut ters. To this end the platform 4-2 of the clamp 39 is arranged, when the table is in the position of presentation, over a ball 60 formed on the end of a lever 61 secured to a rock shaft 62 j ournaled in brackets formed in the machine frame. The other end of the lever 61 is connected to a treadle (not shown) through a vertical rod 63. lhrough the connections described the operative may, by depressing the treadle, rock the shaft 62 and elevate the clamp 39 from the sole. To elevate the cutters the arms 142 are provided with projecting lugs 6st arranged respectively over arms 65 projecting from the rock shaft 62. To separate the feelers and cutters each of the feeler rods 51 carries a horizontal pin 66 arranged in the path of a yoke 67 secured to one end of a rock shaft 68 j ournaled in brackets projecting from the machine frame. The other end of the rock shaft 68 carries a lug 69 which is operatively connected through a link 70 to an arm 71 secured to the rock shaft 62. Thus as the rock shaft is oscillated by the treadle the links 70 are depressed to oscillate the yokes 67 and separate the cutters. By connecting the heel clamp, the cutters and the feelers for operation through the rock shaft 62, depression of the treadle rod 63 simultaneously unclamps the sole, elevates the cutter, and separates the feelers and cutters.

While it is preferred to employ the specific construction and arrangement of parts shown and described, it will be understood that this construction and arrangementis not essential except so far as specified in the claims, and may be changed or modified without departing from the broader features of the invention.

The invention having been described, what is claimed is:

1. A machine for operating upon soles, having in combination, a sole support, a pair of rotary skiving cutters for operating upon opposite sides of the sole simultaneously, a pivoted arm supporting each cutter upon its free end, means for securing a relative movement of the sole support and cutters lengthwise of the sole, and means for automatically moving the cutters from engagement with the sole, substantially as described.

2. A machine for operating upon soles, having in combination, a sole support, a frusto conical cutter, means for supporting the cutter with its axis substantially parallel to the surface of the sole, means for rotating the cutter, means for positioning the sole to cause the cutter to skive the margin of the sole, and means for removing the cutter from. contact with the work, substantially as described.

3. A machine for operating upon soles, having in combination, a horizontal sole support, a frusto-conical skiving cutter, means for supporting the cutter to rotate about an axis substantially parallel to the surface of the sole, means for imparting a relative lengthwise movement to the sole support and cutter, means for operating the cutter to skive the sole by a rapid succession of straight line cuts, and means for actuating the cutter to enter and leave the sole in a substantially vertical plane, substantially as described.

4. A machine for operating upon soles having, in combination, a pair of skiving cutters, means for actuating the cutters to enter the work, a single means for varying the points of entry of the cutters for various lengths of soles, and a plural means for actuating the cutters to leave the work having provision for adjustment to vary the points of departure of the cutters, substantially as described.

5. A machine for operating upon soles having, in combination, a pair of skiving cutters, means for actuating the cutters to enter the work, a gage for determining the points of entry of the cutters, and cams for actuating the cutters to leave the work having provision for adjustment to vary the points of departure of the cutters, substantially as described.

6. A machine for operating upon soles, having, in combination, a sole support, a knife to skive out the shank of the sole, means normally tending to enter the knife into the sole, means for relatively actuating the support and knife to transfer the cut of the knife longitudinally of the sole, a gage for determining the point of entry of the knife into the sole and a cam for actuating the knife to leave the Work having provision for adjustment to vary the point of departure of the knife, substantially as described.

7. A machine for operating upon soles, having, in combination, a pair of skiving cutters arranged to operate upon the opposite margins of a sole, means normally tending to move the cutters into engagement with the work, means normally tending to move the cutters together, and means for simultaneously elevating and separating the cutters, substantially as described.

8. A machine for operating upon soles, having, in combination, a table, a gage, and a clamp carried thereby, means for adjusting the gage and clamp simultaneously to position them properly in longitudinal relation to the sole, and means for imparting a separate vertical movement to the clamp to engage or release the sole, substantially as described.

9. A machine for operating upon soles, havin in combination, a. sole support, means for shanking out a sole, springs normally tending to maintain the support in a position of presentation, mechanism for moving the support against the tension of the springs to permit the operation of the shanking out means, said mechanism being constructed and arranged to release the moving support to the influence of the springs after thetermination of the shanking-out operation, substantially as described.

10. A machine for operating upon soles, having, in combination, a sole support, means for shanking-out a sole, springs normally tending to maintain the support in a position of presentation, mechanism for moving the support against the tension of the springs to permit the operation of the shanking-out means, said mechanism comprising a rack carried by the support, and a segment constructed and arranged to mesh with the rack to move the support away from its position of presentation during the shanking-out operation and release the support to the influence of the springs after scribed.

the termination of the shanking-out operation, substantially as described.

11. A machine for operating upon soles,

having, in combination, a sole support, a pair of rotary cutters arranged to engage With and skive opposite margins of the sole, a pivoted supporting arm for each cutter, means for normally causing the cuttersto engage With the Work, and means for relatively actuating the cutters and sole support i to cause the cutters to move lengthwise of the sole, substantially as described.

12. A machine for operating upon Soles," having, in combination, a sole support, a" cutter supported to rotate about an axis substantially parallel to the surface of the sole and arranged to skive the margin of the sole by a rapid succession of straight line cuts, means for rotating the cutter, and means for relatively actuating the sole support and cutter to cause a lengthwise movement of the sole relative to the cutter, sub

stantially as described. 7

13. A machine for operating upon soles, having, in combination, a sole support, a cutter supported to rotate about an axis substantially parallel to the surface of the V sole and arranged to skive the sole by a rapid succession of straight line cuts, means for causing the cutter to operatively engage With the margin of the sole, means for rotating the cutter, and means for elevating the cutter to disengage the cutter from the Work While maintaining the aX -sof the cutter parallel to the surface of the sole, sub- CARL s. NORDEN.

v Witnesses:

WILLIAM B. KING, ELIZABETH C. COUPE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

